chore: Avoid left-shift of negative values port google/jsonnet#1288 (#612)

He-Pin · web-flow · commit 8c3a8cd275d3 · 2026-02-27T09:00:46.000-08:00
Avoid left-shift of negative values port
diff --git a/sjsonnet/src/sjsonnet/Evaluator.scala b/sjsonnet/src/sjsonnet/Evaluator.scala
@@ -568,7 +568,7 @@ class Evaluator(
             if (rr < 0) {
               Error.fail("shift by negative exponent", pos)
             }
-            if (rr >= 1 && ll >= (1L << (63 - rr)))
+            if (rr >= 1 && math.abs(ll) >= (1L << (63 - rr)))
               Error.fail("numeric value outside safe integer range for bitwise operation", pos)
             else
               Val.Num(pos, (ll << rr).toDouble)

Original file line number	Diff line number	Diff line change
`@@ -568,7 +568,7 @@ class Evaluator(`
`568`	`568`	`if (rr < 0) {`
`569`	`569`	`Error.fail("shift by negative exponent", pos)`
`570`	`570`	`}`
`571`		`- if (rr >= 1 && ll >= (1L << (63 - rr)))`
	`571`	`+ if (rr >= 1 && math.abs(ll) >= (1L << (63 - rr)))`
`572`	`572`	`Error.fail("numeric value outside safe integer range for bitwise operation", pos)`
`573`	`573`	`else`
`574`	`574`	`Val.Num(pos, (ll << rr).toDouble)`